1) A statement akin to showing excitement in anticipation of an upcoming event or action
2) An energetic call to action.
Variants: Let's fucking get it, we get it
Other derivations:
esketit, let's
fucking go, let's do this
1) John: Guys get in here, the Sixers are about to
play the Cavs.
Sam: Let's
get it!
2) I have
two finals back to back tomorrow, let's fucking get it